Curved ruler



FIG. 1 is a perspective view of the curved ruler according to a first embodiment of the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top view of a second embodiment of the curved ruler according to the new design;

FIG. 5 is a bottom view of the second embodiment shown in FIG. 4;

FIG. 6 is a left side view of both embodiments of the new design, this view being the same for each embodiment;

FIG. 7 is a right side view of both embodiments of the new design, this view being the same for each embodiment;

FIG. 8 is a front view of both embodiments of the new design, this view being the same for each embodiment; and,

FIG. 9 is a back view of both embodiments of the new design, this view being the same for each embodiment. 

The ornamental design for a curved ruler, as shown and described. 